IL6 and infection: We used Luminex profiling of serum taken at 6 days post infection in the high dose cohort to analyse the relative levels of 9 cytokines and chemokines: IL-1α, IL-1ß, IL-6, IL-10, IL-12(p70), IL-17, CCL2/MCP-1, GM-CSF and IFN-γ (Fig 2).